How to Change Border Color on Focus of BootStrap Text Box?

I want to change the color of the text box on focus, and also on hover. How can I do this with CSS? I used inspector tools but there was no option for the current focus color (grey, which I don't want).
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GaryConnect With a Mentor Commented:

    border:2px solid red

You would have a problem targeting both hover and focus because they would conflict
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